Search a number
-
+
12735550688 = 257137613677
BaseRepresentation
bin10111101110001100…
…10001010011100000
31012212120012000012112
423313012101103200
5202040300110223
65503423014452
7630412252250
oct136706212340
935776160175
1012735550688
115445982803
12257513a428
13127c670513
1488b5ab960
154e8116778
hex2f71914e0

12735550688 has 96 divisors (see below), whose sum is σ = 28953941184. Its totient is φ = 5401423872.

The previous prime is 12735550687. The next prime is 12735550699. The reversal of 12735550688 is 88605553721.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735550687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18811406 + ... + 18812082.

It is an arithmetic number, because the mean of its divisors is an integer number (301603554).

Almost surely, 212735550688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12735550688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14476970592).

12735550688 is an abundant number, since it is smaller than the sum of its proper divisors (16218390496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12735550688 is a wasteful number, since it uses less digits than its factorization.

12735550688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 12735550688 in words is "twelve billion, seven hundred thirty-five million, five hundred fifty thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 137 224 274 548 613 677 959 1096 1226 1354 1918 2192 2452 2708 3836 4291 4384 4739 4904 5416 7672 8582 9478 9808 10832 15344 17164 18956 19616 21664 30688 34328 37912 68656 75824 83981 92749 137312 151648 167962 185498 335924 370996 415001 587867 649243 671848 741992 830002 1175734 1298486 1343696 1483984 1660004 2351468 2596972 2687392 2905007 2967968 3320008 4702936 5193944 5810014 6640016 9405872 10387888 11620028 13280032 18811744 20775776 23240056 46480112 56855137 92960224 113710274 227420548 397985959 454841096 795971918 909682192 1591943836 1819364384 3183887672 6367775344 12735550688